Oecologia Australis最新文献

{"title":"PAGURIZED GASTROPOD SHELLS IN A NORTHEAST BRAZILIAN COASTAL LAGOON AT THE SEA-ESTUARY INTERFACE","authors":"Sávio A. S. N. Moraes, V. Vale, C. E. Alencar, F. Freire","doi":"10.4257/oeco.2022.2603.04","DOIUrl":"https://doi.org/10.4257/oeco.2022.2603.04","url":null,"abstract":"Gastropods are known for the presence of calcareous shells, even after their death. The diversity of this resource can be reflected in the local diversity of living gastropods. These shells are used by hermit crabs as protection and against desiccation. Coastal lagoons are biodiversity hotspots and the site of recruitment of continent-sea connectivity, and their diversity is sometimes altered by connectivity events with adjacent areas. Therefore, we sought to make a list that evaluates the seasonal variation of diversity and demonstrates the pattern of shell use by hermit crab species. The samplings were standardized in six monthly repeated transects from February 2013 to January 2014, using a fishing net trawl. The shells were identified to species level and quantified. Diversity indexes were calculated, seasonally, for the assemblage of used shells. Hermit crabs used 14 species of gastropod shells, of which Vitta virginea and Phrontis vibex were the most abundant and frequent. The diversity indexes indicated a temporal variation of the shells, with April the month showing the highest difference in diversity. A reflection of the change in surface geomorphology, caused by the King Tide, it’s discharge and carrying of empty gastropod shells to the open sea. The usage patterns of these biogenic remains can reveal strategies of decreased intra/interspecific competition. Furthermore, we described the first record in the Brazilian Northeast of the hermit crab C. symmetricus, after its taxonomic resurgence.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45278218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SALINIDADE E DISPONIBILIDADE DE SUBSTRATOS: IMPLICAÇÕES SOBRE A ATIVIDADE METANOGÊNICA EM DUAS LAGOAS COSTEIRAS DO NORTE FLUMINENSE","authors":"Murilo Minello, André Fonseca, Cláudio Marinho, F. A. Esteves","doi":"10.4257/oeco.2022.2602.16","DOIUrl":"https://doi.org/10.4257/oeco.2022.2602.16","url":null,"abstract":"Este trabalho teve como objetivo avaliar os efeitos das alterações dos valores de salinidade e da disponibilidade de substratos sobre a metanogênese em duas lagoas costeiras do Norte Fluminense (lagoa Cabiúnas, de água doce à salobra, e lagoa Piripiri, de salobra à hipersalina). Para tanto, realizou-se: (1) levantamento bibliométrico na base Scopus (Elsevier) sobre o tema ‘methanogenesis’ e ‘salinity’; (2) experimentos onde alteramos as concentrações de salinidade e as concentrações de sulfato e acetato. O levantamento bibliométrico demonstrou o aumento das publicações sobre o tema ao longo do tempo, indicando uma nova tendência desse campo de pesquisa no cenário científico. Quanto à adição de NaCl, houve crescimento na produção de metano na lagoa Cabiúnas no aumento de salinidade de 0,9 para 4,0. Na lagoa Piripiri o incremento na produção de metano foi observado com aumento da salinidade de 69,1 para 155,0. Os aumentos maiores da salinidade inibiram a produção de metano na lagoa Cabiúnas e não alteraram na lagoa Piripiri. A adição de sulfato reduziu significativamente a produção de metano na lagoa Cabiúnas, enquanto a adição de acetato a fez aumentar. A adição de sulfato e acetato não alterou a produção de metano na lagoa Piripiri. Estes resultados demonstram o efeito da alteração nos valores de salinidade sobre a produção de metano em ambas as lagoas e que há competição entre a biota metanogênica e a sulfato-redutora na lagoa Cabiúnas enquanto o mesmo não ocorre na lagoa Piripiri. SALINITY AND SUBSTRATE AVAILABILITY: IMPLICATIONS FOR METHANOGENIC ACTIVITY IN TWO COASTAL LAGOONS IN THE NORTH OF THE STATE OF RIO DE JANEIRO, BRAZIL: This study aimed to evaluate the effects of changes in salinity values and availability of substrates on methanogenesis in two coastal lagoons in Northern Fluminense (Cabiúnas lagoon, from fresh to brackish water, and Piripiri lagoon, from brackish to hypersaline). To this end, it was carried out: (1) a bibliometric survey on the Scopus (Elsevier) base on the theme ‘methanogenesis’ and ‘salinity’; (2) experiments where we changed the salinity concentrations and the sulfate and acetate concentrations. The bibliometric survey showed an increase in publications on the subject over time, indicating a new trend in this field of research in the scientific scenario. As for the addition of NaCl, there was an increase in the production of methane in the Cabiúnas lagoon, with an increase in salinity from 0.9 to 4.0. In the Piripiri lagoon the increment in methane production was observed with an increase in salinity from 69.1 to 155.0. Higher increases in salinity inhibited methane production in the Cabiúnas lagoon and did not change in the Piripiri lagoon. The addition of sulfate reduced while the addition of acetate significantly increased the production of methane in the Cabiúnas lagoon. The addition of sulfate and acetate did not alter the methane production in the Piripiri lagoon. These results demonstrate the effect of the ","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42966156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INORGANIC NITROGEN STIMULATES METHANE OXIDATION IN COASTAL LAGOON SEDIMENTS","authors":"A. Enrich-Prast, V. Figueiredo, F. Machado‐Silva, R. B. Peixoto, Leonardo Amora-Nogueira, Gabriela Cugler, Maria Carolina Barroso dos Santos, J. P. Felizardo, J. Valle, Davi Pedroni Barreto, Luciene Valladares, Laís Rodrigues, A. Santoro, L. Pinho, C. N. Signori, R. Pollery, E. Silva, H. Marotta","doi":"10.4257/oeco.2022.2602.18","DOIUrl":"https://doi.org/10.4257/oeco.2022.2602.18","url":null,"abstract":"Methane (CH4) oxidation is a critical process to reduce CH4 emissions from aquatic environments to the atmosphere. Considering the continuous increase in nitrogen in rivers, lakes, and lagoons from human sources, we re-evaluated the still controversial potential effect of inorganic nitrogen on CH4 oxidation. Here, we approached three shallow coastal lagoons that represent great environmental heterogeneity and used slurry sediments as a model system. The addition of ammonium chloride (NH4Cl) and potassium nitrate (KNO3) significantly stimulated CH4 oxidation in the sediments of all studied lagoons, indicating the potential limitation of nitrogen for the growth of CH4 oxidizing bacteria. Our findings contrast to some previous reports, where ammonium and nitrate inhibited CH4 oxidation in sediments. Indeed, our experiment was performed in a more realistic range in relation to natural concentrations of inorganic nitrogen in aquatic systems (0.5 to 1 mM) and was opposed to extreme concentrations previously used (2 to 50 mM). Our results point to the need to further assess the connection between nitrogen inputs and CH4 budgets in aquatic sediments, considering the potential fuel for CH4 oxidation that may affect the global greenhouse gas balance","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44465239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INTRUSÃO SALINA EM UM SISTEMA RIO – PLANÍCIE DE INUNDAÇÃO TROPICAL INFLUENCIADO POR MACROMARÉS – RIO PINDARÉ (MA)","authors":"Walter Luis Muedas Yauri, R. Barbieri","doi":"10.4257/oeco.2022.2602.14","DOIUrl":"https://doi.org/10.4257/oeco.2022.2602.14","url":null,"abstract":"O baixo curso do rio Pindaré faz parte de um complexo rio-planície de inundação que possui alto dinamismo, principalmente no nível de água e em seus parâmetros físicos e químicos, como resultado do período chuvoso e também altas marés no período seco. O presente estudo teve como objetivo avaliar a intrusão salina no baixo curso do rio Pindaré, até as proximidades da cidade de Cajari, por meio das variáveis físico-químicas. Foram realizadas seis campanhas de coleta, de dezembro de 2014 a fevereiro de 2016, em sete pontos de amostragem. Os parâmetros medidos foram material em suspensão (TSS), transparência (Secchi), e temperatura, condutividade elétrica, salinidade, pH, oxigênio dissolvido, potencial oxi-redox e percentual de oxigênio na água, com o multiparâmetro da marca YSI® modelo 556. Parâmetros como transparência da água (25 cm) e percentual de oxigênio dissolvido (85%) apresentaram valores maiores na zona mais distante da influência da maré e menores na zona com alta influência (12 cm e 65%, respectivamente), enquanto que salinidade, condutividade elétrica e pH tiveram valores maiores na zona com alta influência da maré (2 g kg-1, 5.100 µS cm-1 e 7,6, respectivamente). Os valores de TSS variaram de 10,2 mg L-1 a 400,1 mg L-1, 40 km e 25 km da foz do rio Pindaré respectivamente, durante a maré de sizígia (período seco), mostrando o efeito de turbulência quanto mais próximo da desembocadura. Foram observadas variações nos parâmetros, indicando que a intrusão salina no baixo curso do rio Pindaré influencia os parâmetros físico-químicos da água na estação seca, principalmente nas marés de sizígia. O aumento da vazão de água doce do rio e o alto nível de água na estação chuvosa induziram características de água doce no trecho estudado do rio. SALINE INTRUSION IN A TROPICAL RIVER – FLOODPLAIN SYSTEM INFLUENCED BY MACRO-TIDES – PINDARÉ RIVER (MA), BRAZIL: The lower course of the Pindaré River is part of a river-floodplain complex that has high dynamism, mainly in its water level, physical and chemical parameters, as a result of the rainy season and also high tides during dry season. The present study aimed to evaluate the saline intrusion in the lower course of the Pindaré River, up to the vicinity of the city of Cajari, through the water physical and chemical variables. Six campaigns were carried out at seven sampling stations from December 2014 to February 2016. The parameters measured were total suspended solids (TSS), transparency (Secchi), and temperature, electrical conductivity, salinity, pH, dissolved oxygen, oxy-redox potential and percentage of oxygen in water using the YSI® model 556 multiparameter. Water transparency (25 cm) and percentage of dissolved oxygen (85%) showed higher values in the área under less tidal influence and lower values in the area with high tidal influence (12 cm and 65%, respectively), while salinity, electrical conductivity and pH had higher values in the zone with high tidal influence (2 g kg-1; 5,100 µS cm-1 an","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43793846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SPATIAL AND TEMPORAL DYNAMICS OF PHYTOPLANKTON IN A HIGHLY IMPACTED TROPICAL MONTANE RIVER","authors":"Davi Almeida Barreto, A. L. Furtado, S. Folharini, C. Marinho, A. Rocha, R. Bozelli, J. Azevedo, L. Silva","doi":"10.4257/oeco.2022.2602.13","DOIUrl":"https://doi.org/10.4257/oeco.2022.2602.13","url":null,"abstract":"Rivers, as most bodies of water, are subject to eutrophication and water contamination, mainly from domestic sewage and industrial discharges from urban centers and agricultural areas. These growing human impacts result in a gradual loss of water quality and changes in biotic communities, including phytoplankton. Analyzing the dynamics of phytoplankton is important to understand how, in addition to hydrography and the physical, chemical and biological variables, human impact can be a controlling factor in this dynamic. In this study, we analyzed abiotic variables and zooplankton abundance to identify the factors controlling different phytoplankton attributes at six sampling points, in two climatic periods and three years, in the Piabanha River, a slowly flowing stream with to strong human impact beginning in its upper course, in a mountain region in southeastern Brazil. The results showed homogeneous environmental variables and different phytoplankton attributes along most of the stretch analyzed, except for sampling point 1, located in a preserved forest area but with nutrient concentrations limiting phytoplankton growth. The difference in flow between the two climatic periods (dry and wet) was not sufficient to change the total phytoplankton biovolume. Temperature seemed to strongly affect the phytoplankton response, with larger relative contributions from cyanobacteria in the wet period, with higher temperatures, and from phytoflagellates in the dry period, with lower temperatures. As expected, zooplankton showed no influence on phytoplankton dynamics, with a large contribution from small rotifers. In this tropical montane river, with slow flow and intense human impacts, nutrient concentrations and temperature were the main drivers of the spatial and temporal dynamics of phytoplankton, respectively","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47012513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ARRIVAL ORDER AND AQUATIC MACROPHYTE COMMUNITY ORGANIZATION IN A TROPICAL ESTUARY","authors":"Laís Samira Correia Nunes, A. F. Camargo","doi":"10.4257/oeco.2022.2602.15","DOIUrl":"https://doi.org/10.4257/oeco.2022.2602.15","url":null,"abstract":"The arrival order in species colonization may be important to the communities’ organization of perennial plants along environmental gradients. In estuarine gradients, the competitive exclusion may have great importance to species zonation regardless of their arrival order. However, priority effect has also been considered, since founder species may remain in the environment even with the later arrival of species of greater competitive ability. We evaluated whether the arrival order and priority effect influence the interspecific interaction between adult individuals (early-colonizing individuals) and young individuals (later-arriving individuals) of the perennial emergent estuarine aquatic macrophytes Spartina alterniflora (S) and Crinum americanum (C). We conducted a laboratory experiment with four cultures (monocultures of early-colonizing individuals of S; monocultures of early-colonizing individuals of C; cultures of early-colonizing individuals of S with introduction of later-arriving individuals of C; and cultures of early-colonizing individuals of C with introduction of later-arriving individuals of S) and two sediment types (lower and middle estuary sediment: salinity 32 and 20, respectively). We hypothesized that, due to the priority effect, in both sediment types (i) the later-arriving species would not establish itself in adult early-colonizing vegetation and (ii) the later-arriving species would not limit the growth of the early-colonizing species. Our results corroborate our hypotheses as the later-arriving individuals of S. alterniflora and C. americanum did not grow up and establish themselves in the heterospecific cultures of early-colonizing individuals in both sediment types. Furthermore, the growth of the early-colonizing individuals was not limited by the presence of the later-arriving individuals. We conclude that the arrival order and priority effect can influence the interspecific competition, communities’ organization and spatial distribution of aquatic macrophytes in tropical estuaries.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43301968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DETERMINANT DRIVERS FOR THE COMMUNITY STRUCTURE OF BENTHIC MACROINVERTEBRATES IN COASTAL LAGOONS AT THE RESTINGA DE JURUBATIBA NATIONAL PARK, IN THE STATE OF RIO DE JANEIRO STATE (BRAZIL)","authors":"M. Bevilacqua, R. Felix, Marcos Paulo Figueiredo Barros, F. Esteves","doi":"10.4257/oeco.2022.2602.20","DOIUrl":"https://doi.org/10.4257/oeco.2022.2602.20","url":null,"abstract":"This study aimed to characterize and evaluate factors driving the structure of the benthic macroinvertebrate community in coastal lagoons at the Restinga de Jurubatiba National Park. Sixteen lagoons were sampled in July 2010 during the dry season. At each lagoon, three samples were taken in the central region and three samples were taken near the sandbar. At each point, the limnological variables and the benthic community were collected. Richness and abundance were calculated for each sample. The correlations among the environmental parameters were tested using Pearson's correlation. A Principal Component Analysis using environmental variables was performed to visualize the similarity among samples. Simple regressions were used to assess the correlation between macroinvertebrates' metrics and environmental parameters. A redundancy test was performed to link environmental parameters to the community structure of macroinvertebrates. A total of 1,719 macroinvertebrates were identified in 25 taxa groups that were classified as exclusive marine taxa, five as brackish/marine taxa, seven as freshwater taxa, and two taxa as groups with marine and freshwater representatives. The most abundant taxa were Leonereis sp., Heleobia australis, and Kalliapseudidae. Richness and abundance were negatively related to salinity. The redundancy test indicated pH, salinity, coarse grain size, and dissolved oxygen as the environmental variables explaining the macroinvertebrate community structure variation among the lagoons. Understanding the drives and dynamics which guide the macroinvertebrates communities' turnover in coastal lagoons is a relevant tool to subsidize environmental management decisions due to the increasing threats around the park.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42337240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ECOLOGY OF AQUATIC MACROPHYTES IN BRAZIL: THE LEGACY OF FRANCISCO DE ASSIS ESTEVES","authors":"S. Thomaz, P. Carvalho, R. Mormul, A. Padial, Elena F. Galvanese, L. M. Bini","doi":"10.4257/oeco.2022.2602.04","DOIUrl":"https://doi.org/10.4257/oeco.2022.2602.04","url":null,"abstract":"In this review, we evaluate the contribution of Brazilian limnologists to research outputs on aquatic macrophyte ecology. We found a strong “adviser effect” of Professor F.A. Esteves on the Brazilian scientific production focused on aquatic macrophytes. In general, articles focused on a variety of themes, including, inter alia, the role of aquatic macrophytes on the biodiversity of other groups, the interaction between macrophytes and the environment, the effects of environmental factors on aquatic macrophytes distribution and biodiversity, the effects of invasive species on aquatic biodiversity, aquatic macrophytes control and decomposition. Emerging topics (e.g., metacommunity ecology, biodiversity-ecosystem functioning, and patterns of diversity and their determinants) are being embraced by Brazilian limnologists that use aquatic macrophytes as organism models. Despite the fact there is much to study, we think that directly (e.g., via mentoring) or indirectly (via publications), our current knowledge about macrophytes ecology was inspired by Chico Esteves.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45910128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"FROM THE FLOOD PULSE CONCEPT TO CLIMATE CHANGE, AN ANALYSIS OF THE RESEARCH ON LIMNOLOGY IN THE BRAZILIAN PANTANAL WETLAND","authors":"C. J. Silva, Michele de Morais, Cristina Marcia de Menezes Buttaka, S. M. L. Oliveira, W. Lázaro, Carolina dos Santos, Breno Dias Vitorino, E. S. O. Junior, Josué Ribeiro da Silva Nunes","doi":"10.4257/oeco.2022.2602.06","DOIUrl":"https://doi.org/10.4257/oeco.2022.2602.06","url":null,"abstract":"The aim of this work was to evaluate the gaps, trends and advances in the uses of the concepts of flood pulse and climate change through the analysis of scientometrics in Limnology in the Pantanal, between the years 1990 to 2021. The most studied ecological groups and rivers were: aquatic macrophytes and phytoplankton, and Cuiabá and Paraguai, respectively, with the highest number of article publications between 2016-2020. The temporal dynamics of social networks showed the presence of new local institutions, from other Brazilian and international states in the last 20 years. Studies on climate change are still incipient, while those related to the flood pulse are more frequent in the Pantanal. Trends and advances were found in the ecosystem approach of the flood pulse, related to the height of the water level. Few studies address the flood pulse in terms of duration and frequency. The flood pulse is shown as a consolidated concept, emerging as a highly sensitive tool in the face of short, medium and long-term environmental changes, such as climate change, making it possible to identify and deal with socio-environmental challenges and point out participatory governance mechanisms.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48147716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ECOLOGIA DE BENTOS: UMA SEMENTE NO SEDIMENTO DO LABORATÓRIO DE LIMNOLOGIA DA UFRJ","authors":"M. Callisto, J. J. Leal, Marcelo S. Moretti, Raphael Ligeiro","doi":"10.4257/oeco.2022.2602.05","DOIUrl":"https://doi.org/10.4257/oeco.2022.2602.05","url":null,"abstract":"Os estudos relacionados à Ecologia de Organismos Bentônicos dedicam-se aos organismos que habitam o sedimento e substratos de fundo, consolidados ou não, de ecossistemas aquáticos continentais, tais como rios, riachos de cabeceira, lagos e reservatórios. Este artigo apresenta uma síntese sobre a importante contribuição do Prof. Francisco de Assis Esteves, do Laboratório de Limnologia da UFRJ, à formação de pessoal e à produção científica na área de Ecologia de Organismos Bentônicos no Brasil. Avaliamos os curricula vitae dos ex-alunos do Prof. Esteves, e seus orientados. Foram analisadas as bases Lattes/CNPq e Scopus, realizando avaliações qualitativas e quantitativas, respectivamente. Avaliamos a formação de pessoal desde a criação do Laboratório de Limnologia na UFRJ no final dos anos 80 e a produção científica (livros, capítulos de livros, artigos científicos publicados em revistas nacionais e internacionais), áreas de atuação, periódicos e programas de pós-graduação associados a ex-alunos do Prof. Esteves em que atualmente são realizados estudos sobre Ecologia de Organismos Bentônicos no Brasil. A contribuição científica desses estudos foi classificada em três grandes áreas: (i) Distribuição Espaço-temporal de Populações e Assembleias, e Estrutura de Comunidades Bentônicas; (ii) sua participação em Processos Ecológicos (p.ex.: Ciclagem de Nutrientes, Bioturbação e Decomposição de Matéria Orgânica, Interações Tróficas e Estequiometria Ecológica); e (iii) sua utilização como Bioindicadores de Qualidade de Água e em Índices Multimétricos de Integridade Ecológica. Identificamos as principais linhas de pesquisa desenvolvidas no período 1996-2021 e projetamos as perspectivas de novas abordagens para os próximos 20 anos, considerando o cenário político-ambiental no Brasil e na perspectiva de mudanças ambientais globais. A semente plantada no Laboratório de Limnologia da UFRJ pelo Prof. Esteves cresceu, frutificou e tem dispersado novas sementes para diferentes regiões do Brasil.","PeriodicalId":39092,"journal":{"name":"Oecologia Australis","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44972268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}